Extreme's engineers excel at evaluating oil, gas, and coalbed methane
reservoirs. We believe strongly in the value of reservoir description.
Geophysical, geological, and engineering data are integrated into a consistent
interpretation of the reservoir. Good descriptions are the foundation for
accurately forecasting fluid flow behaviors.
Key Benefits
Understand the personality of the reservoir and use it to optimize
depletion strategies
Utilize existing data to its fullest potential to unlock the reservoir
description
Design efficient development and recovery projects with higher probability
of success
Capabilities
Formation Evaluation
Analysis of logs, drill stem tests, core data. Log analysis is performed
with Pfeffer. Drill stem test data and core analysis data is analyzed with
in-house software.
Pressure Transient Analysis
In-house software is used to analyze pressure buildup, drawdown tests to
determine the reservoir pressure, permeability and skin factor. Analysis of
natural fracture systems can also be done with this data.
Reservoir Model Development
RockWorks is used to build three dimensional solid models of the
reservoir using the available geophysical, geological, and engineering data.
Three dimensional visualization is important to the development of
meaningful reservoir descriptions.
Reservoir Flow Simulation
Reservoir flow modeling is done using the Exodus simulator. The
simulator is capable of black oil and compositional simulations.
Carbon Dioxide Flood Miscibility Screening
A series of published empirical correlations are used in conjuction with
laboratory crude oil characterization results to estimate the minimum
miscibility pressure for CO2 flood candidates.
Example Projects
Minnelusa Water Flood Optimization
A Minnelusa water flood in Campbell County, WY was analyzed to improve
water flood performance. Dipmeter logs were used to identify discreet dune
structures within the reservoir. With these structures identified, it was
possible to evaluate the injection and production points in each structure
and identify areas of under and over injection.
CO2 Screening Study
The performance of existing Rocky Mountain CO2 floods at
Wertz, Lost Soldier, Rangely, and Aneth was examined. Analogy was used to
determine the potential reserves target for CO2. The
Tensleep, Muddy, and Second Wall Creek reservoirs in a Natrona County,
WY field were analyzed for minimum miscibility pressures using Holm and
Josendal, Yellig and Metcalfe, Cronquist, and Alston, et al correlations.
CO2 utilization, volume requirements, injectivity, mobility
control, conformance, artificial lift, gas handling, corrosion, and
asphaltene issues were examined. Preliminary economics were analyzed
considering costs for design, CO2 purchase, wells, injection facilities,
separation and compression facilities, operating costs, and production
revenue potential.
SAGD Steamflood Startup Design
A study was performed on a steam-assisted gravity drainage pilot project
in Wyoming, which had been shut-in due to economic problems. The factors
causing the poor operating economics were identified and recommendations
made for project start-up to mitigate the previous problems. The study
allowed the project to be restarted.
Inc.
![[Under Construction]](images/undercon.gif){kind=small}
